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Basis of Presentation and General Information (Carrying Amount And Activity Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2018	Dec. 29, 2017
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	$ 85,074	$ 72,376
Additions (see Note 15)		11,396
Foreign currency translation adjustment	(867)	1,302
Goodwill, Ending Balance	84,207	85,074
The Hackett Group [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	44,402	41,242
Additions (see Note 15)		1,858
Foreign currency translation adjustment	(867)	1,302
Goodwill, Ending Balance	43,535	44,402
Hackett Technology Solutions [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	40,672	31,134
Additions (see Note 15)		9,538
Goodwill, Ending Balance	$ 40,672	$ 40,672

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
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-Topic 350
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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